H04R 2440/00
Bending wave transducers covered by h04r, not provided for in its groups
Official title: Bending wave transducers covered by H04R, not provided for in its groups
H04R2440/00 (Bending wave transducers covered by h04r, not provided for in its groups) appears on 447 US grants and 543 published applications in this corpus.
Search patents in H04R- Granted patents
- 447
- Published applications
- 543
- Assignees
- 172
- Inventors
- 776
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 17 | 3 |
| 2002 | 6 | 5 |
| 2003 | 3 | 1 |
| 2004 | 3 | 4 |
| 2005 | 2 | 6 |
| 2006 | 1 | 8 |
| 2007 | 5 | 7 |
| 2008 | 3 | 8 |
| 2009 | 4 | 8 |
| 2010 | 2 | 6 |
| 2011 | 3 | 9 |
| 2012 | 9 | 8 |
| 2013 | 5 | 11 |
| 2014 | 9 | 15 |
| 2015 | 18 | 31 |
| 2016 | 22 | 20 |
| 2017 | 14 | 22 |
| 2018 | 19 | 21 |
| 2019 | 31 | 42 |
| 2020 | 47 | 75 |
| 2021 | 50 | 46 |
| 2022 | 42 | 42 |
| 2023 | 38 | 49 |
| 2024 | 37 | 47 |
| 2025 | 28 | 28 |
| 2026 | 25 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04R 2440/05Aspects relating to the positioning and way or means of mounting ofIndexing code344
- H04R 2440/07Loudspeakers using bending wave resonance and pistonic motion to generate soundIndexing code100
- H04R 2440/01Acoustic transducers using travelling bending waves to generate or detect soundIndexing code72
- H04R 2440/03Resonant bending wave transducer used as a microphoneIndexing code16
Recent patents
- Transducer, electronic device and transducer array8 Sep 2026US 12,732,745 B2Rohm Co., Ltd.
- Acoustical transducer composite glass panel1 Sep 2026US 12,726,767 B2GM Global Technology Operations LLC
- Display device11 Aug 2026US 12,707,189 B2Sony EMCS (Malaysia) SDN.BHD.
- Display device14 Jul 2026US 12,684,296 B2Samsung Display Co., Ltd.
- Vibration apparatus and apparatus including the same7 Jul 2026US 12,677,101 B2LG Display Co., Ltd.
- Electoacoustic transducer17 Sep 2026US 2026/0281623 A1
- Methods and systems for smart acoustic multimodal interfaces27 Aug 2026US 2026/0252197 A1University of Rochester
- Acoustic system, acoustic system control method, and acoustic system manufacturing method23 Jul 2026US 2026/0214384 A1Panasonic Automotive Systems Co., Ltd.
- A micro-electromechanical-system based micro speaker23 Jul 2026US 2026/0214391 A1Myvox AB
- A mems-based micro speaker device and system23 Jul 2026US 2026/0214393 A1Myvox AB
Most cited
By later US patents
- Acoustic device295US 6,332,029 B1New Transducers Limited · 2001
- Acoustic device206US 7,158,647 B2New Transducers Limited · 2007
- Flat panel displaying and sounding system integrating flat panel display with flat panel sounding unit array79US 8,879,766 B12014
- Panel-form loudspeakers75US 6,198,831 B1New Transducers Limited · 2001
- Ceiling tile loudspeaker68US 6,215,881 B1New Transducers Limited · 2001